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gearing
Apr 17, 2012 8:30:23 GMT -5
Post by munday on Apr 17, 2012 8:30:23 GMT -5
I have a new to me tt540, would like some idea what gearing to run this weekend at 81 and jeeps. Any help would be great. I need to borrow some sprockets before I leave town.
Thanks Bob
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gearing
Apr 17, 2012 16:05:36 GMT -5
Post by slider67g on Apr 17, 2012 16:05:36 GMT -5
Bob, I am not sure what is on my front but I think it is a 15. I always start with a 48 but sometimes go to 49 on the rear.
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gearing
Apr 18, 2012 7:03:46 GMT -5
Post by munday on Apr 18, 2012 7:03:46 GMT -5
Harry,Terry what gear do you run?
Bob
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gearing
Apr 18, 2012 7:42:05 GMT -5
Post by uglybill on Apr 18, 2012 7:42:05 GMT -5
At 81 I start at 15/48 then switch to a14/48 for jeeps.
It will get you in the ball park.
If you plan to go to norton and stockton a
16 counter shaft sprocket is a must.
Wm
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gearing
Apr 18, 2012 7:54:31 GMT -5
Post by uglybill on Apr 18, 2012 7:54:31 GMT -5
One tooth on the yamy thumpers is
about 500 rpm.
One tooth on the counter shaft is about
the same as adding or subtracting 3 teeth
on the rear sprocket. Hope that this helps.
Wm
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gearing
Apr 18, 2012 8:50:57 GMT -5
Post by slider67g on Apr 18, 2012 8:50:57 GMT -5
I run the same gearing on Jeeps that I do on 81. 3rd gear at Jeeps and 4th at 81.
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gearing
Apr 18, 2012 21:56:38 GMT -5
Post by munday on Apr 18, 2012 21:56:38 GMT -5
Thanks guys! I think I can get close to that.
Bob
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gearing
Apr 23, 2012 8:09:15 GMT -5
Post by munday on Apr 23, 2012 8:09:15 GMT -5
Many thanks to Ugly Bill,Tom and all the guys in vintage open.
All of your help and support made my first race in Vintage a great time. See you next time
Bob
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